Description

Function of the Oil Cooler

The engine oil cooler is a compact water-to-oil heat exchanger mounted on the engine block at the oil filter housing. Engine coolant flows through one side of the cooler and engine oil through the other, so heat is carried out of the oil and into the cooling system before the oil returns to the bearings, camshafts and turbocharger. On a turbo diesel like the GW4D20M this keeps the oil within its working temperature range under towing, heavy loads and long highway runs, protecting the turbo and stopping the oil from breaking down and forming sludge. A failed or leaking oil cooler shows up as oil leaking at the filter housing, oil in the coolant (a dark or milky expansion tank), coolant in the oil (creamy residue under the oil filler cap), overheating, or a steady loss of coolant with no visible external leak. Because oil and coolant mixing quickly damages bearings and the turbocharger, a suspect oil cooler should be replaced without delay, together with fresh oil, a new oil filter and a cooling system flush.

Fits the 2.0 GW4D20M turbo diesel engine as used in the GWM P-Series Commercial and GWM P-Series Passenger single cab and double cab bakkies.

Why order it from Partszar

Overheating is the fastest way to turn a small cooling part into a head gasket or a warped cylinder head. A vehicle should never be driven on a cooling fault. With this fitted the temperature needle stays where it belongs.

• Fitment checked before it is listed. Every part is cross-referenced against the official parts catalogue and OEM part number so it fits first time. If your vehicle is listed above, this is the one you need. Not sure? Send us your VIN using the contact form below and we confirm the exact part for free, no obligation.
• Dispatched fast, tracked to your door. In-stock parts leave within 1 to 2 business days and reach you anywhere in South Africa in 2 to 5 business days with tracking. Back-order parts are sourced directly from our supplier, typically 3 to 4 weeks, and we keep you updated by email.
• OEM part. Made by the manufacturer that supplies the factory, so it fits and performs exactly like the original.
• Decide with confidence. Selected parts carry our 6-month limited guarantee when fitted by an RMI-approved mechanic. Not sure about anything? Contact us below before you order.

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